12V7A motorcycle battery can not use 14V3A switching power supply charge
12V7A motorcycle battery does not mean that the charge to 7A can be 0A ~ 7A but the current large battery will be serious heat is not good.
Completely, the charging time is 3 hours. If the adjustment to 15 volts is also OK, the charging time is shortened.
Can be used, but can not often use, because: 12V7A battery suitable for the charging current of 0.7-2.1A, 3A current slightly larger.
But if you insist on the use of a small change, do not change the original switching power supply, only need a series resistance, resistance size of about 1 ohm, power of 5 wirewound resistors, so that the output current can be controlled within 2.1A, You can also ensure that the battery can be fully charged.
